Objective: To explore the relationship between urinary soybean isoflavone metabolites and sexual development of adolescent girls. Methods: Fifty girls of grade 5 from one primary school in Xingang City who met the inclusion criteria were selected. Sexual characteristic development was assessed and soybean isoflavone metabolites in urine was tested by ultra high speed liquid chromatography tandem mass spectrometry (UPLC MS/MS). Results: Levels of dye xylinone in girls with different stages of sexual development (advanced, normal, and delayed groups) varied significantly[(186.7±24.1，171.8±22.8，155.3±21.6)μmol/mol] ( F =3.53， P <0.05), highest in advanced group. Urinary genistein was significantly higher in menarche group than that of non menarche group[(213.4±22.8，166.3±21.7)μmol/mol] ( t =2.16， P <0.05). Urinary genistein may be associated with early sexual development among adolescent girls. Conclusion High level of urine genistein may be related to the early sexual development of adolescent girls.

Objective To explore the effect of endoplasmic reticulum stress (ER stress) in uric acid?induced phenotypic change in renal tubular epithelial cells (HK?2). Methods (1) HK?2 cells were cultured with 0, 75, 150, 225, 300 mg/L uric acid for 24 h in vitro. (2) The cells were divided into normal control group, ER stress inhibitor 4?PBA (5 μmol/L) group, uric acid (150 mg/L) group and 4?PBA+uric acid group for 24 h. Morphological changes of HK?2 cells were observed under inverted microscope. MTT assay was used to detect the proliferation of HK?2 cells treated with 150 mg/L uric acid for 24, 48 and 72 h. The protein expressions of α?smooth muscle actin (α?SMA), vimentin, snail, glucose regulated protein 78 (GRP78) and the phosphorylation of eukaryotic initiation factor 2α(p?eIF2α) in HK?2 cells were measured by Western blotting. Results Compared with the control group, HK?2 cells in uric acid groups (150, 225, 300 mg/L) showed fibroblast?like appearance. The protein expressions of α?SMA, vimentin, snail, GRP78 and p?eIF2α in 150 mg/L and 225 mg/L uric acid groups were higher than those in the control group (all P<0.05). The proliferation of HK?2 cells in 150 mg/L uric acid group was lower than that in control group at 48 and 72 h (all P<0.01). Compared with the uric acid group, the cell morphology in 4?PBA+uric acid group was improved, and the protein expressions ofα?SMA, vimentin, snail, GRP78 and p?eIF2α were decreased (all P<0.05). Conclusions Uric acid may induce the phenotype transformation of renal tubular epithelial cell, and ER stress is involved. 4?PBA may inhibit the uric acid?induced ER stress response and phenotypic transformation, and may be beneficial in attenuating uric acid?induced renal tubular damage.

Objective: To explore the intervention effect of sports combined with group psychological counseling on the psychological craving, addiction sererity, as well as comorbid depression with anxiety severity of college students with smartphone addiction. Methods: Totally 148 smart-phone addicts were randomly divided into 3 groups(sports group 49 students, group psychological counseling group 50 students, sports group counseling group 49 students). Smartphone addiction was evaluated by using the University Student Smartphone Addiction Scale(SAS-C); the degree of mental hunger was assessed by the Visual Analog Scale(VAS); the Hamilton Depression Scale(HAMD) and the Hamilton Anxiety Scale(HAMA) were used to evaluate the degree of anxiety and depression. All scales were evaluated before intervention, after intervention and 3 months after the intervention. Results: The SAS-C,VAS,HAMD,HAMA scores of the three groups decreased with time(F=36.05，38.54，37.27，39.27，P<0.01), and the scores were the lowest in the sports group counseling group, SAS-C,VAS,HAMD,HAMA followed by the group counseling group and the highest in the sports group(F=34.33，32.36，32.34，34.96，P<0.01). Howevey, all the 3 groups still had depression and anxiety symptoms after 3 months of intervention. Conclusion Sports, group psychological counseling, sports combined with group counseling can all differentially help decreasing the psychological cravings and addiction levels of smartphone addicts and severity of depression and anxiety with the latter shows the highest effectiveness, followed by the group counseling and sports intervention alone.

Objective To detect the expression of survivin mRNA in cervical cancer cell lines using molecular beacon imaging technology. Methods Human cervical cancer cells (HeLa and SiHa) and human fetal lung fibroblast HFL-I were cultured in vitro. After adding 100 nmol/L survivin mRNA molecular beacon, the fluorescent signals were observed under fluorescent microscope. The expressions of survivin in cervical cancer cells and HFL-I cell were examined by immunocytochemical streptravidin-biothin peroxidase (SP) assay at the same time. Results Two kinds of survivin mRNA molecular beacon, with different color fluorescence, had strong fluorescent signal in cervical cancer cell lines, and the signal in SiHa cell line was stronger, but these signals were not found in HFL-I ; Immunocytochemical staining of positive survivin was located in the cytoplasm of cervical cancer cell lines HeLa and SiHa, whereas, no expression of survivin was detected in HFL-I cell line. Conclusion The technology of molecular beacon imaging can be used to detect the expression of survivin mRNA in viable cells successfully, and may provide a new approach to the diagnosis of early stage cervical cancer and the following-up in the clinic.

There has been an ongoing search for clinically acceptable methods for the accurate, efficient and simple diagnosis and prognosis of hepatocellular carcinoma (HCC). Optical spectroscopy is a technique with potential clinical applications to diagnose cancer diseases. The purpose of this study was to obtain the optical properties of HCC tissues and non-tumorous hepatic tissues and identify the difference between them. A total of 55 tissue samples (HCC tissue, n=38; non-tumorous hepatic tissue, n=17) were surgically resected from patients with HCC. The optical parameters were measured in 10-nm steps using single-integrating-sphere system in the wavelength range of 400 to 1800 nm. It was found that the optical properties and their differences varied with the wavelength for the HCC tissue and the non-tumorous hepatic tissue in the entire wavelength range of research. The absorption coefficient of the HCC tissue (1.48±0.99, 1.46±0.88, 0.86±0.61, 2.15±0.53, 0.54±0.10, 0.79±0.15 mm(-1)) was significantly lower than that of the non-tumorous hepatic tissue (2.79±1.73, 3.13±1.47, 3.06±2.79, 2.57±0.55, 0.62±0.10, 0.93±0.16 mm(-1)) at wavelengths of 400, 410, 450, 1450, 1660 and 1800 nm, respectively (P<0.05). The reduced scattering coefficient of HCC tissue (5.28±1.70, 4.91±1.54, 1.26±0.35 mm(-1)) and non-tumorous hepatic tissue (8.14±3.70, 9.27±3.08, 2.55±0.57 mm(-1)) was significantly different at 460, 500 and 1800 nm respectively (P<0.05). These results show different pathologic liver tissues have different optical properties. It provides a better understanding of the relationship between optical parameters and physiological characteristics in human liver tissues. And it would be very useful for developing a non-invasive, real-time, simple and efficient way for medical management of HCC in the future.

Objective To investigate the diagnostic value of microRNA (miRNA) in peripheral venous blood for depressive disorder.Methods Real-time fluorescence quantitative PCR (RT-qPCR) was used to verify expression level of miRNAs in peripheral blood of non-specific mental retardation children,which were aberrantly expressed in depressive disorder patients,and then Receiver Operating Characteristics (ROC)curve was employed to confirm the sensitivity and specificity of abnormal miRNA expression in depressive disorder and non-specific mental retardation.Results MiR-1972,miR-26b,miR-4485,miR-4498 and miR-4743 were upregulated significantly in case group of depressive disorder(P＜0.05),meanwhile miR-4485 and miR-4743 in aforementioned 5 miRNAs also upregulated significandy in patients of non-specific mental retardation(P＜0.05),but miR-26b showed no significant difference between case group of non-specific mental retardation and the control group (P＞0.05).The ROC curve of miR-26b in depressive disorder patients and their control group showed that the sensitivity and specificity were 0.609,0.664 respectively,and the area square under the curve was 0.614(P=0.021).The ROC curve of miR-26b in patients of depressive disorder and non-specific mental retardation indicated that the sensitivity and specificity were 0.784 and 0.471,and area square under the curve was 0.643 (P=0.003).Conclusion miR-26b probably have diagnostic value for depressive disorder,which may comorbidity with non-specific mental retardation.But genetic and psychosocial mechanism of comorbidity still needs further exploration.

Objective To predict the target genes and function of has-miR-26b,has-miR-1972,has-miR4485,has-miR-4498,and has-miR-4743 by bioinformatics analysis,and provide the theoretical basis for the further research.Methods The targets of the five microRNAs were predicted by Target Scan,miRBD,and DIANA-microT-CDS,and the result were analyzed by gene ontology and pathway analysis using FunNet.Results 734 predicted targets were obtained by finding the intersected genes of Target Scan,miRBD,and DIANA-microT-CDS.GO analysis showed that biological processes regulated by the differentially expressed microRNAs included diverse terms,among which some terms (e.g.,central nervous system development,neuron differentiation,axonogenesis,synaptic transmission,learning,and memory,etc.) had direct relationship with the central nervous system and brain functions.The pathway analysis showed that a significant enrichment in several pathways related to neuronal brain function,such as axon guidance,glutamatergic synapse,Wnt signaling pathway,mTOR signaling pathway,VEGF signaling pathway,etc.Among the five microRNAs,has-miR-26b,has-miR-1972,has-miR-4498 might have more important regulatory functions.Conclusion Bioinformatic analysis indicates that has-miR-26b,has-miR-1972,has-miR-4485,has-miR-4498,and has-miR-4743 are closely related to the mechanism and pathogenesis of major depressive disorder.

Gastric cancer is one of the malignant tumors with high morbidity and high mortality in China.Research has shown that viral infection is closely related to the occurrence of gastric cancer.EpsteinBarr virus-associated gastric cancer characterized by EB virus infection has been classified as a subtype of gastric cancer,whose epidemiology,pathogenesis,clinical and histopathologic features have been studied in detail.At the same time,oncolytic viruses reveal the inhibitory effect of the virus on tumors,and their ability to target and kill tumor cells is used in the treatment of some advanced cancers.This article will review the research advances about relevance to gastric cancer of several viruses that have been reported and the latest progress in anticancer mechanisms and combined therapies for oncolytic viruses.

As the proceeding of the Belt and Road, TCM industry in Russia develops steadily. Acupuncture and Tuina therapies have been accepted by the local people, while Chinese medicine is still around the acceptance. Right now, Russian economy is on a recovering stage, so it's good time for TCM to carry service trading during this time. TCM development in Russia need to focus on the input of medical resources, managements and regulations, proceeding TCM teaching work and bringing along TCM service trade by acupuncture therapy.

Objective:To investigate the value of ADC derived from DWI combined with texture analysis derived from T 2WI fat suppressed images in distinguishing benign and malignant soft tissue tumors. Methods:The MRI and DWI images of 94 patients with soft tissue tumors (44 cases with malignant and 50 cases with benign) confirmed by pathology were analyzed retrospectively in the First Affiliated Hospital of USTC West District. ADC values of solid components were measured at GE ADW4.6 workstation. The texture features were extracted by manually drawing the ROI on the maximum level of the T 2WI fat suppressed images; the ADC values and texture parameters between the two groups were statistically analyzed by SPSS17.0, and the multivariate logistic regression model were conducted to analyze and calculate the diagnostic performance. Results:ADC value of benign and malignant soft tissue tumors was (1.6±0.3)×10 -3 mm 2/s, (1.2±0.5)×10 -3 mm 2/s, respectively, and the difference was statistically significant( t=-5.382, P<0.05). Taking 1.28×10 -3 mm 2/s as the critical value, the area under curve (AUC) for the diagnosis of benign and malignant soft tissue tumors was 0.783, the sensitivity was 92.00%, and the specificity was 65.91%. Among the texture features, the AUC of frequency size, skewness, Inertia All Direction_offset7, Inverse Difference Moment angle0_offset1, Inverse Difference Moment angle0_offset7 and Haralick Correlation All Direction_offset4_SD distinguishing benign and malignant soft tissue tumors were 0.825, 0.739, 0.826, 0.816, 0.820 and 0.783, respectively. The AUC, sensitivity and specificity of the best predictive model distinguishing benign and malignant soft tissue tumors were 0.930, 88.00% and 86.36% respectively using multivariate logistic regression analysis. Conclusion:ADC combined with texture analysis is of great value in preoperative differentiation of benign and malignant soft tissue tumors.